Where does “piikkari” come from?

piikkari (Finnish) comes from Finnish piikki, from Swedish spik, from Old Norse spíkr, from Proto-Germanic spīkaz, from Proto-Indo-European spēy- — to stretch; thrive; succeed.

piikkari (Finnish): A track spike track and field shoe

Definitions

A track spike track and field shoe

Ancestry of “piikkari”, step by step

piikkari traces back through two separate lines of ancestry.

via Finnish piikki

Step	Language	Word	Meaning
1	Finnish	piikki	spike; Short for piikkikenkä; tine, prong
2	Swedish	spik	nail; spike-shaped metal fastener; an fail-safe...
3	Old Norse	spíkr	—
4	Proto-Germanic	spīkaz	—
5	Proto-Indo-European	spēy-	to stretch; thrive; succeed

via Finnish Ari

Step	Language	Word	Meaning
1	Finnish	Ari	—
2	Latin	adrianus	—

Every word from Proto-Indo-European spēy- →Every word from Proto-Germanic spīkaz →Every word from Old Norse spíkr →